<template>
  <div class="login">
    <div class="login-box">
      <div class="left-content">
        <div>
          <div style="font-size: 20px;">三 水 储 粮 管 理 系 统</div>
          <div style="font-size: 16px;margin-top: 5px;">欢 迎 登 录 !</div>
        </div>
        <div style="width: 300px; margin: 0 auto;">
          <el-image style="width: 100%;" :src="require('../assets/images/loginImage.png')" />
        </div>
      </div>
      <div>
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
          <h3 class="title">登 录</h3>
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="请输入账号">
              <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
            </el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="请输入密码" show-password
              @keyup.enter.native="handleLogin">
              <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
            </el-input>
          </el-form-item>
          <el-form-item prop="code" v-if="captchaEnabled">
            <el-input v-model="loginForm.code" auto-complete="off" placeholder="验证码" style="width: 63%"
              @keyup.enter.native="handleLogin">
              <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
            </el-input>
            <div class="login-code">
              <img :src="codeUrl" @click="getCode" class="login-code-img" />
            </div>
          </el-form-item>
          <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;color: #C5C5C5;">记住密码</el-checkbox>
          <el-form-item style="width:100%;margin-top: 30px;">
            <el-button :loading="loading" size="medium" type="primary"
              style="width:100%;height: 40px; background-image: linear-gradient(to left, #FF9500,#FF462A);border: none;border-radius: 20px;"
              @click.native.prevent="handleLogin">
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
            <div style="float: right;" v-if="register">
              <router-link class="link-type" :to="'/register'">立即注册</router-link>
            </div>
          </el-form-item>
        </el-form>
      </div>
    </div>
    <!--  底部  -->
    <div class="el-login-footer">
      <!-- <span>Copyright © 2018-2024 ruoyi.vip All Rights Reserved.</span> -->
    </div>
  </div>
</template>

<script>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: "Login",
  data () {
    return {
      codeUrl: "",
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" }
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: false,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created () {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode () {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie () {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin () {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || "/" }).catch(() => { });
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.png");
  background-size: cover;
}

.title {
  // margin: 0px auto 30px auto;
  // text-align: center;
  // color: #707070;
  color: #FF9500;
  font-weight: bold;
}

.login-box {
  width: 1000px;
  border-radius: 16px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  background-image: linear-gradient(#FF9500, #FF462A);
  box-shadow: 0px 0px 10px 0px #0000008c;
}

.left-content {
  padding: 30px;
  box-sizing: border-box;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.login-form {
  border-radius: 16px;
  background: #ffffff;
  width: 500px;
  height: 400px;
  padding: 25px 25px 5px 25px;
  box-shadow: 0px 0px 10px 0px #0000008c;

  .el-input {
    height: 38px;

    input {
      border: 1px solid #FF9500;
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
    color: #FF9500;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}
</style>
